Spelling fixes

Change-Id: Id1511c5022a239db5d0b44ec7adf048cca307751
diff --git a/src/gprs/gprs_sgsn.c b/src/gprs/gprs_sgsn.c
index 8d3de7b..fae09ae 100644
--- a/src/gprs/gprs_sgsn.c
+++ b/src/gprs/gprs_sgsn.c
@@ -103,9 +103,9 @@
 
 static const struct rate_ctr_desc sgsn_ctr_description[] = {
 	{ "llc:dl_bytes", "Count sent LLC bytes before giving it to the bssgp layer" },
-	{ "llc:ul_bytes", "Count sucessful received LLC bytes (encrypt & fcs correct)" },
-	{ "llc:dl_packets", "Count sucessful sent LLC packets before giving it to the bssgp layer" },
-	{ "llc:ul_packets", "Count sucessful received LLC packets (encrypt & fcs correct)" },
+	{ "llc:ul_bytes", "Count successful received LLC bytes (encrypt & fcs correct)" },
+	{ "llc:dl_packets", "Count successful sent LLC packets before giving it to the bssgp layer" },
+	{ "llc:ul_packets", "Count successful received LLC packets (encrypt & fcs correct)" },
 	{ "gprs:attach_requested", "Received attach requests" },
 	{ "gprs:attach_accepted", "Sent attach accepts" },
 	{ "gprs:attach_rejected", "Sent attach rejects" },